Equilibrium characteristic at ordered-disordered phase boundary in centrifuged nonequilibrium colloidal-crystal system

Journal of the American Chemical Society

Volumn 126, Issue 41, 2004, Pages 13210-13211

  Kanai, Toshimitsu ^a   Sawada, Tsutomu ^a   Yamanaka, Junpei ^b   Kitamura, Kenji ^a  

^a NATIONAL INSTITUTE FOR MATERIALS SCIENCE   (Japan)

^b NAGOYA CITY UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; CHEMICAL STRUCTURE; COLLOID; CONCENTRATION (PARAMETERS); CRYSTALLIZATION; MOLECULAR DYNAMICS; REFLECTOMETRY; SPECTROSCOPY; WAVEFORM;

EID: 6044248973     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja045601v     Document Type: Article

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29. Under the present conditions, the structure of the colloidal crystal is face-centered cubic, as it is in most cases, although it can be body-centered cubic if the particle diameter and particle volume-fraction are reduced.
30. pφ.
31. The concentrated colloidal crystal with a certain salt concentration was diluted in a vial step by step with water of the same salt concentration. At each dilution, after the suspension became homogeneous, the Bragg wavelength for normal reflection was measured. The Bragg wavelength increased with decreasing particle concentration, and finally, no Bragg reflection was detected. The longest Bragg wavelength thus obtained was for the ordered phase at the two phase equilibrium.